/*
* Copyright 2002-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.jdbc.support.lob;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.Blob;
import java.sql.SQLException;
/**
* Simple JDBC {@link Blob} adapter that exposes a given byte array or binary stream.
* Optionally used by {@link DefaultLobHandler}.
*
* @author Juergen Hoeller
* @since 2.5.3
*/
class PassThroughBlob implements Blob {
private byte[] content;
private InputStream binaryStream;
private long contentLength;
public PassThroughBlob(byte[] content) {
this.content = content;
this.contentLength = content.length;
}
public PassThroughBlob(InputStream binaryStream, long contentLength) {
this.binaryStream = binaryStream;
this.contentLength = contentLength;
}
public long length() throws SQLException {
return this.contentLength;
}
public InputStream getBinaryStream() throws SQLException {
return (this.content != null ? new ByteArrayInputStream(this.content) : this.binaryStream);
}
public InputStream getBinaryStream(long pos, long length) throws SQLException {
throw new UnsupportedOperationException();
}
public OutputStream setBinaryStream(long pos) throws SQLException {
throw new UnsupportedOperationException();
}
public byte[] getBytes(long pos, int length) throws SQLException {
throw new UnsupportedOperationException();
}
public int setBytes(long pos, byte[] bytes) throws SQLException {
throw new UnsupportedOperationException();
}
public int setBytes(long pos, byte[] bytes, int offset, int len) throws SQLException {
throw new UnsupportedOperationException();
}
public long position(byte pattern[], long start) throws SQLException {
throw new UnsupportedOperationException();
}
public long position(Blob pattern, long start) throws SQLException {
throw new UnsupportedOperationException();
}
public void truncate(long len) throws SQLException {
throw new UnsupportedOperationException();
}
public void free() throws SQLException {
// no-op
}
}
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